Maintenance release: Syncplify.me Server! v3.1.21.61

This new maintenance release fixes a bug in the Configuration Manager that prevented the hash code of some CA-issued certifricates (especially wildcard ones) from being calculated. This was just a visualization bug, all certificates were still working correctly in the SFTP/FTP(S) server, but if you use a CA-issued wildcard certificate you might want to install this update.